[REN-BGP-stats-all] IPv4 R&E Routing Table Report - MARWAN (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Thu May 29 18:00:35 UTC 2025
IPv4 R&E Routing Table Report 18:00 GMT Thu 29 May, 2025
IPv4 BGP Table (R&E) as seen at MARWAN.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/MARWAN/
Analysis Summary
----------------
BGP routing table entries examined: 794
Prefixes after maximum aggregation (per Origin AS): 82
Deaggregation factor: 9.68
Unique aggregates announced (without unneeded subnets): 90
Number of IPv4 prefixes with a valid ROA: 55
Number of IPv4 prefixes with an invalid ROA: 93
Number of IPv4 prefixes with no ROA: 646
Total ASes present in the Internet Routing Table: 71
Prefixes per ASN: 11.18
Origin-only ASes present in the Internet Routing Table: 37
Origin ASes announcing only one prefix: 20
Transit ASes present in the Internet Routing Table: 34
Transit-only ASes present in the Internet Routing Table: 28
Paths with bogon ASNs present in the IPv4 Routing Table: 1
Average AS path length visible in the Internet Routing Table: 1.6
Max AS path length visible: 11
Max AS path prepend of ASN (136911) 6
Prefixes from unregistered ASNs in the Routing Table: 1
Number of instances of unregistered ASNs: 1
Number of 32-bit ASNs allocated by the RIRs: 46539
Number of 32-bit ASNs visible in the Routing Table: 9
Prefixes from 32-bit ASNs in the Routing Table: 10
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1
Number of addresses announced to Internet: 2391298
Equivalent to 0 /8s, 36 /16s and 125 /24s
Percentage of available address space announced: 0.1
Percentage of allocated address space announced: 0.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 685
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 12
Total APNIC prefixes after maximum aggregation: 9
APNIC Deaggregation factor: 1.33
Prefixes being announced from the APNIC address blocks: 12
Unique aggregates announced from the APNIC address blocks: 12
APNIC Region origin ASes present in the Internet Routing Table: 9
APNIC Prefixes per ASN: 1.33
APNIC Region origin ASes announcing only one prefix: 6
APNIC Region transit ASes present in the Internet Routing Table: 5
Average APNIC Region AS path length visible: 6.5
Max APNIC Region AS path length visible: 11
Number of APNIC region 32-bit ASNs visible in the Routing Table: 9
Number of APNIC addresses announced to Internet: 3073
Equivalent to 0 /8s, 0 /16s and 12 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-155961
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 92
Total ARIN prefixes after maximum aggregation: 48
ARIN Deaggregation factor: 1.92
Prefixes being announced from the ARIN address blocks: 93
Unique aggregates announced from the ARIN address blocks: 53
ARIN Region origin ASes present in the Internet Routing Table: 25
ARIN Prefixes per ASN: 3.72
ARIN Region origin ASes announcing only one prefix: 10
ARIN Region transit ASes present in the Internet Routing Table: 18
Average ARIN Region AS path length visible: 5.0
Max ARIN Region AS path length visible: 7
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 1410048
Equivalent to 0 /8s, 21 /16s and 132 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-402332
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8,
67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8,
74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8,
100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8,
131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8,
139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8,
148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8,
159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8,
167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8,
184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8,
207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 20
Total RIPE prefixes after maximum aggregation: 19
RIPE Deaggregation factor: 1.05
Prefixes being announced from the RIPE address blocks: 20
Unique aggregates announced from the RIPE address blocks: 20
RIPE Region origin ASes present in the Internet Routing Table: 6
RIPE Prefixes per ASN: 3.33
RIPE Region origin ASes announcing only one prefix: 3
RIPE Region transit ASes present in the Internet Routing Table: 3
Average RIPE Region AS path length visible: 2.9
Max RIPE Region AS path length visible: 4
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 960256
Equivalent to 0 /8s, 14 /16s and 167 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8,
81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8,
88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8,
95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8,
185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 0
Total LACNIC prefixes after maximum aggregation: 0
LACNIC Deaggregation factor: -nan
Prefixes being announced from the LACNIC address blocks: 0
Unique aggregates announced from the LACNIC address blocks: 0
LACNIC Region origin ASes present in the Internet Routing Table: 0
LACNIC Prefixes per ASN: -nan
LACNIC Region origin ASes announcing only one prefix: 0
LACNIC Region transit ASes present in the Internet Routing Table: 0
Average LACNIC Region AS path length visible: -nan
Max LACNIC Region AS path length visible: 0
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 0
Equivalent to 0 /8s, 0 /16s and 0 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 669
Total AfriNIC prefixes after maximum aggregation: 5
AfriNIC Deaggregation factor: 133.80
Prefixes being announced from the AfriNIC address blocks: 667
Unique aggregates announced from the AfriNIC address blocks: 4
AfriNIC Region origin ASes present in the Internet Routing Table: 2
AfriNIC Prefixes per ASN: 333.50
AfriNIC Region origin ASes announcing only one prefix: 1
AfriNIC Region transit ASes present in the Internet Routing Table: 1
Average AfriNIC Region AS path length visible: 1.0
Max AfriNIC Region AS path length visible: 2
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 17920
Equivalent to 0 /8s, 0 /16s and 70 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
55446 2 0 1 CENTDEVTEL-NON-AS-AP CENTRE FOR DEVELOPME
148000 2 0 1 INDIAN-PUBLIC-DNS 1.10.10.10 - Indian Pub
149490 2 0 1 SYLHET-AS-AP Sylhet Agricultural Universi
134414 1 0 1 DLS-LSGH De La Salle-Greenhills, PH
136911 1 0 1 AUFW-AS-AP Asian University for Women, BD
137869 1 0 1 HMDSATU-AS-AP Hajee Mohammad Danesh Scien
141288 1 0 1 NISER-AS-IN National Institute Of Science
141507 1 0 1 NIMHANS-AS-IN National Institute Of Menta
150325 1 0 1 TSUKUDANI-NETWORK TSUKUDANI NETWORK, GB
Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
32440 22 17 6 LONI, US
11481 15 18 2 AS-UTRGV, US
25689 7 16 1 SSC-299-25689, CA
23024 6 0 3 OCDE, US
3999 5 76 5 PENN-STATE, US
73 4 36 4 WASHINGTON-AS, US
2152 4 17 3 CENIC-2152, US
16905 4 0 4 LEARN-RESEARCH, US
14314 3 0 1 UTRGV-AS-14314, US
29 2 32 2 YALE-AS, US
Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
559 13 200 13 SWITCH Peering requests: peering at switch.c
137 2 32 2 ASGARR Consortium GARR, IT
8674 2 0 1 NETNOD-IX Netnod AB, SE
1200 1 0 1 AMS-IX NL Administrative network, NL
20965 1 2 1 GEANT The GEANT IP Service, NL
29216 1 0 1 I-ROOT DNS root name server i.root-server
Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
30983 668 4 5 MARWAN-AS, MA
36884 1 0 0 MAROCCONNECT, MA
Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
30983 668 4 5 MARWAN-AS, MA
32440 22 17 6 LONI, US
11481 15 18 2 AS-UTRGV, US
559 13 200 13 SWITCH Peering requests: peering at switch.c
25689 7 16 1 SSC-299-25689, CA
23024 6 0 3 OCDE, US
3999 5 76 5 PENN-STATE, US
73 4 36 4 WASHINGTON-AS, US
2152 4 17 3 CENIC-2152, US
16905 4 0 4 LEARN-RESEARCH, US
Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
32440 22 16 LONI, US
11481 15 13 AS-UTRGV, US
25689 7 6 SSC-299-25689, CA
23024 6 3 OCDE, US
14314 3 2 UTRGV-AS-14314, US
2152 4 1 CENIC-2152, US
8674 2 1 NETNOD-IX Netnod AB, SE
23237 2 1 MCMASTER, CA
26883 2 1 AS26883, US
46985 2 1 HPWREN, US
Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
65000 PRIVATE 102.216.118.0/24 30983 MARWAN-AS, MA
Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.168.167.1/32 30983 MARWAN-AS, MA
Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
192.168.167.1/32 Origin: 30983 MARWAN-AS, MA
192.168.167.1/32 Transit: 0 UNALLOCATED
Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
!!Default route being announced!!
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:0 /10:0 /11:0 /12:0
/13:0 /14:0 /15:2 /16:29 /17:5 /18:8
/19:5 /20:5 /21:3 /22:6 /23:14 /24:73
/25:9 /26:4 /27:17 /28:11 /29:56 /30:1
/31:1 /32:544
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
30983 642 668 MARWAN-AS, MA
32440 15 22 LONI, US
11481 10 15 AS-UTRGV, US
16905 4 4 LEARN-RESEARCH, US
2152 3 4 CENIC-2152, US
14314 3 3 UTRGV-AS-14314, US
26883 2 2 AS26883, US
57 1 1 NL-GIGAPOP, US
73 1 4 WASHINGTON-AS, US
1200 1 1 AMS-IX NL Administrative network, NL
Complete listing at https://bgp.nsrc.org/REN/MARWAN/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
44:1 49:2 64:2 67:5 69:1 74:4
76:16 102:1 103:8 104:11 130:1 192:1
194:2 196:18
End of report
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